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OS Max GT15 Modified Back Plate OS Max GT15HZII Sport Edition
OS Max GT15HZII Sport Edition
Our Price: $439.00
Sale Price: $399.99
Savings: $39.01
Backplate for GT15 engine has been factory modified to increase the clearance for the piston at the bottom dead center of its rotation Meet the OS Max GT15HZII - GPH Sports Edition!

Based on the OS Max GT15HZII gasoline engine, this is the latest version of the proven engine plus our proprietary cooling head. Out of the box this assembled engine includes

  • The lasted design piston/Ring
  • New design back plate for maximum piston clearance
  • .90 size 8mm crankshaft - fits most 700 class fan/clutch/hubs
  • New design wire piston pin clips
  • JCDesigns WARHead - significant cooling improvement
  • OS EI system, spark plug, fuel pump, throttle arm and instructions
  • Does NOT include muffler

Perfect fit for the JCD 5xx gas conversions
Fits most 700 class helicopters including the Goblin Nitro (with fan shroud modifications

NOTE: See additional running requirements under Technical Specs